New Version is in repos.
Changelog:

• SFTP/SCP support based on Paramiko (http://www.lag.net/paramiko/)
• Progressbar for nearly every remote action
• Added Active/Passive Mode capabilities (only for FTP)
• Advanced/Basic Mode based on suggestion from toxaris
• Changed from QFTP to ftplib and ftputil (http://ftputil.sschwarzer.net/trac)
• solved some download and upload bugs

Known Issues:

• Progressbars "Cancel-Button" not working
• In SFTP/SCP mode no UNICODE support

Any feedback is highly appreciated.
Especially Active/Passive mode and non-standard ports I couldn't test myself.